反应详情

温度

50 °C

An 250-mL round bottom flask was charged with ethyl 2-(6-((2-(3-chlorophenyl)-6-cyclopropylpyrimidin-4-yl)amino)pyridin-3-yl)acetate (0.417 g, 1.02 mmol), dioxane (20 ml) and water (10 ml). To this solution was then added lithium hydroxide monohydrate (0.214 g, 5.10 mmol). The resulting mixture was stirred at 50° C. for 1.5 h. The cooled reaction mixture was treated with 2N aqueous HCl until pH˜4 affording a solid. The solid was isolated by filtration and dried under reduced pressure at 55° C. to afford the title compound (0.408 g, 100%) as a white solid. MW=380.83. M.p.>260° C. 1H NMR (DMSO-d6, 500 MHz) δ 12.33 (br s, 1H), 10.41 (s, 1H), 8.32-8.24 (m, 3H), 7.80-7.70 (m, 2H), 7.60-7.52 (m, 3H), 3.62 (s, 2H), 2.10 (septet, J=4.5 Hz, 1H), 1.16-1.10 (m, 2H), 1.10-1.02 (m, 2H); ESI MS m/z 381 [M+H]+.

1. customThe cooled reaction mixture
2. customaffording a solid
3. customThe solid was isolated by filtration
4. customdried under reduced pressure at 55° C.